Finding the Third Proportional to 1,287,170 and 1,748,123

Step by Step Solution

1. Step 1: Write the proportion equation
   1,287,170 : 1,748,123 = 1,748,123 : x
2. Step 2: Convert to fraction form
   1,287,170/1,748,123 = 1,748,123/x
3. Step 3: Cross multiply
   1,287,170x = 1,748,123 × 1,748,123
4. Step 4: Simplify right side
   1,287,170x = 3,055,934,023,129
5. Step 5: Solve for x
   x = 3,055,934,023,129/1,287,170
6. Step 6: Final answer
   x = 2,374,149.51